31003280

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{719}}^1$

素因数の和:757

約数の個数: 120

約数和(自身を含む): 91601280

約数和(自身を除く): 60598000

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 35, 40, 44, 49, 55, 56, 70, 77, 80, 88, 98, 110, 112, 140, 154, 176, 196, 220, 245, 280, 308, 385, 392, 440, 490, 539, 560, 616, 719, 770, 784, 880, 980, 1078, 1232, 1438, 1540, 1960, 2156, 2695, 2876, 3080, 3595, 3920, 4312, 5033, 5390, 5752, 6160, 7190, 7909, 8624, 10066, 10780, 11504, 14380, 15818, 20132, 21560, 25165, 28760, 31636, 35231, 39545, 40264, 43120, 50330, 55363, 57520, 63272, 70462, 79090, 80528, 100660, 110726, 126544, 140924, 158180, 176155, 201320, 221452, 276815, 281848, 316360, 352310, 387541, 402640, 442904, 553630, 563696, 632720, 704620, 775082, 885808, 1107260, 1409240, 1550164, 1937705, 2214520, 2818480, 3100328, 3875410, 4429040, 6200656, 7750820, 15501640, 31003280]

約数ペア:

[(1, 31003280), (2, 15501640), (4, 7750820), (5, 6200656), (7, 4429040), (8, 3875410), (10, 3100328), (11, 2818480), (14, 2214520), (16, 1937705), (20, 1550164), (22, 1409240), (28, 1107260), (35, 885808), (40, 775082), (44, 704620), (49, 632720), (55, 563696), (56, 553630), (70, 442904), (77, 402640), (80, 387541), (88, 352310), (98, 316360), (110, 281848), (112, 276815), (140, 221452), (154, 201320), (176, 176155), (196, 158180), (220, 140924), (245, 126544), (280, 110726), (308, 100660), (385, 80528), (392, 79090), (440, 70462), (490, 63272), (539, 57520), (560, 55363), (616, 50330), (719, 43120), (770, 40264), (784, 39545), (880, 35231), (980, 31636), (1078, 28760), (1232, 25165), (1438, 21560), (1540, 20132), (1960, 15818), (2156, 14380), (2695, 11504), (2876, 10780), (3080, 10066), (3595, 8624), (3920, 7909), (4312, 7190), (5033, 6160), (5390, 5752)]